N-VINYLPYRROLIDONE（NVP）

Characteristics : Colorless or pale yellow clear liquid with slight odor at room temperature. Its melting point is 11℃. NVP is soluble in water and various kinds of organic solvent. It is reactive and easy to polymerize and hydrolyze．

Specification Items Excellent Grade First Grade Second Grade Purity (HPGC,%) ≥99.7 ≥99.5 ≥99 Chromaticity (AHPA) ≤20 ≤40 ≤60 Water Content (%) ≤0.1 ≤0.1 ≤0.2 α- pyrrolidone (%) - ≤0.1 ≤0.2

Packing and Storage 200 kg standard plastic drum

Application 1 . Plastic industry: NVP can be added into UV-curing paint to form flexile and hard plastic film. NVP can improve elongation rate and viscosity of high and low gloss coating for radiation medicine. 2.

Electronic industry: Electrical equipment manufacturers rely on rapid process and low temperature process of UV paint to protect cable, electrical components and print-circuit board. 3． Metal industry: Cationic vinyl ethers/epoxides or heterocyclic compounds are often used in UV coating for metal.

It is the function of NVP to form excellent diluent by crosslinking with groups of such vinyl ethers and acrylic acids in these systems. 4. Other industries: NVP can be widely used in industries of lumbering, paper-making, inks, adhesives and so on.